Multiple choice

What 2 particles are found in the nucleus of an atom?

  1. protons and neutrons

  2. electrons & neutrons

  3. electrons and protons

  4. protons and klingons

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The nucleus of an atom is composed of protons and neutrons, which are collectively called nucleons. Electrons orbit outside the nucleus in the electron cloud.